Improvement in cbank-cooteotion



@uitrit tetes @einer @ffice EDWARD R. COLE, OF PAWTUCKET, RHODE ISLAND.

Letters .Patent No. 67,957, dated August 20, 1867.

IMPROVEMENT IN (iRANK-CONNECTION.

TO ALL WHOM IT MAY CONGERN:

Be "1t known that I, EDWARD R. COLE, of Pawtucket, in the county of Providence, and State ot' Rhode Island, have invented a `new and improved Crank-Connection and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art'tomake and use the same, reference being had to the accompanying drawings, forming part of this specification.

The present invention relates to converting a reciprocating rectilinear motion into a rotary motion, or vice versa, and consists principally in hanging. the crank-pin in a box arranged to slide in a suitable way or groove attached to a rod or shaft having a reciprocating rectilinear motion given to it in any proper manner, the sides of the said groove or way being susceptible of adjustment with regard to each other, so as to compensate for their wear, and also for that ofthe sliding-box. In accompanying plate of' drawings my improvement in crankconnection is illustrated- Figure 1 being a side view, showing my improved c1anl -connection.

Figure 2a transverse vertical section'taken in the plane of the line x xv, iig. 1.

In the following description, my improved crank-connection will be particularly explained, in connection with the piston-rod ot' a steam-engine cylinder, the movement of which is reciprocating rectilinear, A being the piston-rod, B the crank, and C the shaft to which such crank is secured. Between the said rod A and the said crank-B a connection is made as follows: D, the crank-pin, hung to and in a box, E, arranged to slide in a dove-tail way or groove, F, formed upon the rod G, and extending in a direction at right angles to its length and its line of movement. The sides L,of the groove or way F are attached to the plate I of the rod A by means of bolts H or nuts J, the former of which pass through elongated slots K of the said plate I, ex tending in such a direction as to allow the said sides'to be adjusted to a greater or lesser distance apart, whereby their wear, as well as that of the slide-box, is compensated for.

From the above description it is .plainly apparent that the np-zaind-down` movement, or, in other words, the reciprocating rectilinear movement of the pistonrod through the crank-connection hereinabove described, is made to'impart a continuons rotary motion to the crank-shaft C, the said connection being extremely simple, direct, and positivein its' action, and inv manyother evident respects advantageous.

I claim as new, and desire to secure by Letters Patent- 1. In combination withthe vsliding-box E and grooved guide of the shaft A, the adjustable sides for the groovevor Way of the sliding-box, substantially as and for' the purpose specified. t

2. I also claim the adjustable sides for the Agroove or way of the sliding-box, substantially as and for the purpose described.

EDWARD R. COLE.

Witnesses:

ROYAL LEE, Gao. A. CAnPENTEn. 

